25278484 has 24 divisors (see below), whose sum is σ = 55153728. Its totient is φ = 9848640.

The previous prime is 25278481. The next prime is 25278521. The reversal of 25278484 is 48487252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25278481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40729 + ... + 41344.

It is an arithmetic number, because the mean of its divisors is an integer number (2298072).

Almost surely, 2^25278484 is an apocalyptic number.

It is an amenable number.

25278484 is an abundant number, since it is smaller than the sum of its proper divisors (29875244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25278484 is a wasteful number, since it uses less digits than its factorization.

25278484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82095 (or 82093 counting only the distinct ones).

The product of its digits is 143360, while the sum is 40.

The square root of 25278484 is about 5027.7712756250. The cubic root of 25278484 is about 293.4834900412.

It can be divided in two parts, 2527 and 8484, that added together give a palindrome (11011).

The spelling of 25278484 in words is "twenty-five million, two hundred seventy-eight thousand, four hundred eighty-four".